Power line detection device and method

Abstract

The invention discloses a power line detection device and method, and belongs to the technical field of power line detection. A power line detection device comprises a base, a tension detector is fixedly installed on the base, the power line detection device further comprises an electric sliding rail which is vertically and fixedly installed on the base, a sliding table is longitudinally and slidably installed on the electric sliding rail, the lower end of the sliding table and the input end of the tension detector are provided with an upper cylinder and a lower cylinder respectively, and the upper cylinder and the lower cylinder are fixedly installed on the base. Clamps are fixedly mounted on the upper cylinder and the lower cylinder; the supporting column is transversely installed on the base in a sliding mode, an ejector block facing the position between the upper cylinder and the lower cylinder is installed on the supporting column, and a reciprocating part for driving the supporting column to slide in a reciprocating mode is arranged on the base; according to the invention, the power line can be simulated to be jacked by trees or other objects in actual use, so that the detection accuracy of the power line is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power line detection, and in particular to a power line detection device and method. Background Art

[0002] The power cord is an electric wire that transmits electric current. The structure of the power cord is mainly an outer sheath, an inner sheath, and a conductor. Common transmission conductors are metal wires made of copper and aluminum. In some high-precision electrical products, silver, gold and other materials are also used as conductors. During the production process of the power cord, inspectors will perform tensile tests on some power cords to ensure the quality of the power cord and its actual strength in use.

[0003] In the prior art, inspectors mainly use a tension tester to detect the maximum force when the power cord is broken. When the force when the power cord is broken is less than a preset value, it means that the power cord is unqualified, otherwise it is qualified. Usually, it is qualified in most cases. However, in actual use, the power cord may be pulled by various forces, such as being pressed by trees, friction, and torsion, etc., which is not a single tensile force. Therefore, the data of the power cord test is not accurate enough. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that the data detected on the power line is not accurate enough, and to propose a power line detection device and method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A power line detection device comprises a base, on which a tension detector is fixedly installed, and also comprises: an electric slide rail, which is vertically fixedly installed on the base, wherein a slide table is longitudinally slidably installed on the electric slide rail, an upper cylinder and a lower cylinder are respectively installed at the lower end of the slide table and the input end of the tension detector, and a clamp is fixedly installed on the upper cylinder and the lower cylinder; a pillar is transversely slidably installed on the base, wherein a top block facing between the upper cylinder and the lower cylinder is installed on the pillar, and a reciprocating part for driving the pillar to slide back and forth is provided on the base.

[0007] In order to drive the top block to intermittently press the power cord, preferably, the reciprocating part includes a strip groove arranged on the base, and a reciprocating screw is rotatably installed in the strip groove, wherein a reciprocating slider slidably connected to the strip groove is installed on the outer wall of the reciprocating screw, and a motor for driving the reciprocating screw to rotate is fixedly installed in the strip groove, and the support is fixedly connected to the reciprocating slider through a connecting frame.

[0008] In order to facilitate the replacement of different top blocks for pressing power cords, preferably, a C-shaped frame is fixedly connected to the pillar, the bottom of the C-shaped frame is rotatably connected to a rotating shaft, the top of the C-shaped frame is longitudinally slidably installed with a lifting shaft, the bottom of the lifting shaft is provided with a sliding hole, a sliding column fixedly connected to the rotating shaft is longitudinally slidably installed in the sliding hole, the C-shaped frame is provided with an adjustment part for driving the rotating shaft to rotate, the number of the top blocks is provided with a plurality, a disc is fixedly installed on the outer wall of the lifting shaft, and the plurality of top blocks are fixedly connected to the outer wall of the disc at equal intervals.

[0009] In order to automatically drive the disc to rotate, the adjusting part further includes a rotating rod rotatably connected to the lower end of the C-shaped frame, the rotating rod and the rotating shaft are connected through a worm gear assembly, one end of the rotating rod is equipped with a driven gear through a one-way bearing, and the electric slide rail is fixedly connected to a first rack meshing with the driven gear.

[0010] In order to make the top block slide along the surface of the power cord, further, a trapezoidal block is fixedly connected to the electric slide rail, the top of the lifting shaft is attached to the inclined surface of the trapezoidal block, a ring is rotatably installed on the inner bottom of the C-shaped frame, and a reset spring is installed between the disc and the ring.

[0011] In order to allow the power cord to twist during testing, preferably, the lower cylinder is rotatably connected to the input end of the tension tester, and a passive gear is fixedly installed on the outer wall of the lower cylinder, and a second rack meshing with the passive gear is fixedly installed on the support.

[0012] In order to prevent excessive pulling force from damaging the power cord, preferably, a slide groove is provided at the bottom of the slide, a slide plate is longitudinally slidably installed in the slide groove, a buffer spring is installed between the slide plate and the inner top of the slide groove, and the upper cylinder is fixedly connected to the lower end of the slide plate.

[0013] In order to facilitate the adjustment of the sliding resistance of the skateboard, further, the side wall of the slide groove is provided with a transverse groove, a damping plate is installed in the transverse groove for transverse sliding, one side of the skateboard is attached to the outer wall of the damping plate, and the slide platform is provided with a tightening part for pushing the damping plate to move transversely.

[0014] In order to facilitate the adjustment of the position of the damping plate, further, the abutting portion includes a screw rod rotatably connected to the outer wall of the damping plate, one end of the screw rod extends to the outer wall of the slide and is fixedly mounted with a turning handle.

[0015] A power line detection method, the operation steps are as follows:

[0016] Step 1: Fix both ends of the power cord to the lower cylinder and the upper cylinder respectively;

[0017] Step 2: The slide table drives the upper cylinder to straighten the power cord, and the power cord is subjected to a preset tension value;

[0018] Step 3: Make the top block indirectly press the straightened power cord;

[0019] Step 4: When the top block is pressing the power cord, the top block is slid along the outer wall of the power cord;

[0020] Step 5: Twist one end of the pressed power cord;

[0021] Step 6: If the power cord is worn or broken, the power supply is considered unqualified, otherwise it is qualified.

[0022] Compared with the prior art, the present invention provides a power line detection device having the following features:

[0023] Beneficial effects:

[0024] 1. The power cord detection device drives the reciprocating screw to rotate through the motor, and the pillar will drive the top block to indirectly press the power cord in the straightened state to simulate the power cord being pressed by trees or other objects in actual use. When the power cord is quickly damaged and broken, it is judged as unqualified, otherwise it is qualified, thereby improving the detection accuracy of the power cord.

[0025] 2. The power cord detection device drives the rotating rod to move back and forth through the C-shaped frame, and the intermittently rotating disc will drive multiple top blocks to intermittently revolve around its axis, so that the positions of multiple top blocks are automatically changed, so that top blocks of different shapes and materials are facing the power cord, so that the power cord is pressed by objects of different materials and shapes, thereby making the power cord more consistent with the actual usage and improving the detection accuracy of the power cord.

[0026] 3. The power cord detection device drives the top of the lifting shaft to slide along the inclined surface of the trapezoidal block through the C-shaped frame. The lifting shaft will slide downward under the action of the inclined surface of the trapezoidal block, thereby driving the disc and the top block to slide downward. Therefore, when the top block presses the power cord, it will also slide along the surface of the power cord to simulate the power cord being scratched by a moving object, thereby further improving the accuracy of power supply detection.

[0027] 4. The power cord detection device drives the second rack to slide back and forth through the support, and the second rack drives the passive gear to rotate back and forth, and the passive gear drives the lower cylinder to rotate back and forth, and the lower cylinder drives one end of the power cord to rotate back and forth, so that the power cord will be subjected to torsion during the detection process, further improving the detection accuracy of the power cord. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the axonometric structure of a power line detection device proposed by the present invention from a first viewing angle;

[0029] Figure 2 A schematic diagram of the axonometric structure of a power line detection device proposed by the present invention from a second viewing angle;

[0030] Figure 3 A schematic diagram of a partial axonometric structure of a power line detection device proposed by the present invention Figure 1 ;

[0031] Figure 4 This is a schematic diagram of the isometric structure of a base of a power line detection device proposed by the present invention;

[0032] Figure 5 A schematic diagram of a partial axonometric structure of a power line detection device proposed by the present invention Figure 2 ;

[0033] Figure 6 A schematic diagram of the disc axonometric structure of a power line detection device proposed by the present invention;

[0034] Figure 7 A schematic diagram of a disc-cut axonometric structure of a power line detection device proposed by the present invention;

[0035] Figure 8 The present invention is a schematic diagram of the cross-sectional isometric structure of a slide table of a power line detection device proposed by the present invention.

[0036] In the figure: 1. base; 2. electric slide rail; 3. slide table; 4. tension tester; 5. lower cylinder; 6. upper cylinder; 7. fixture; 8. pillar; 9. top block; 10. reciprocating screw; 11. motor; 12. reciprocating slider; 13. connecting frame; 14. C-shaped frame; 15. disc; 16. rotating shaft; 17. slide column; 18. lifting shaft; 19. rotating rod; 20. worm gear assembly; 21. driven gear; 22. first rack; 23. ring; 24. reset spring; 25. sliding hole; 26. trapezoidal block; 27. driven gear; 28. second rack; 29. ​​sliding groove; 30. sliding plate; 31. buffer spring; 32. transverse groove; 33. damping plate; 34. screw; 35. turning handle; 36. strip groove. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] Embodiment 1:

[0040] Reference Figure 1-Figure 8 A power line detection device comprises a base 1 for supporting the whole device, a tension detector 4 for detecting the tension applied to the power line is fixedly mounted on the base 1, and also comprises: an electric slide rail 2, which is vertically fixedly mounted on the base 1, wherein a slide table 3 is longitudinally slidably mounted on the electric slide rail 2, and the electric slide rail 2 can drive the slide table 3 to slide upward or downward, and an upper cylinder 6 and a lower cylinder 5 are respectively mounted on the lower end of the slide table 3 and the input end of the tension detector 4, and a clamp 7 for fixing the end of the power line is fixedly mounted on the upper cylinder 6 and the lower cylinder 5, and the present application adopts screws to tighten the end of the power line in the upper cylinder 6 or the lower cylinder 5; a pillar 8 slidably mounted on the base 1 horizontally, wherein a top block 9 facing between the upper cylinder 6 and the lower cylinder 5 is mounted on the pillar 8, and a reciprocating part for driving the pillar 8 to slide back and forth is provided on the base 1.

[0041] Specifically, when it is necessary to detect the power cord, the two ends of the power cord are fixed on the lower cylinder 5 and the upper cylinder 6 respectively by the clamp 7, and then the slide 3 is driven to move upward by the electric slide rail 2, and the slide 3 will gradually tighten the power cord through the upper cylinder 6. At this time, the tension detector 4 will detect the tension on the power cord. When the tension value reaches the preset value and the power cord is not broken or damaged, the strength of the power cord is judged to be qualified. Otherwise, when the power cord is broken, the power cord is judged to be unqualified. When the tensile strength of the power cord meets the requirements, the slide 3 stops moving upward and drives the support 8 to slide back and forth through the reciprocating part. The support 8 will drive the top block 9 to indirectly press the power cord in the straightened state to simulate the power cord being pressed by trees or other objects in actual use. When the power cord is quickly damaged and broken, it is judged to be unqualified, otherwise it is qualified, thereby improving the detection accuracy of the power cord.

[0042] Embodiment 2:

[0043] Reference Figure 2-Figure 4 , which is basically the same as Example 1, and further discloses a specific implementation scheme of the reciprocating part.

[0044] The above-mentioned reciprocating part includes a strip groove 36 arranged on the base 1, and a reciprocating screw 10 is rotatably installed in the strip groove 36, wherein a reciprocating slider 12 slidably connected to the strip groove 36 is installed on the outer wall of the reciprocating screw 10, and a motor 11 for driving the reciprocating screw 10 to rotate is fixedly installed in the strip groove 36, and the support 8 is fixedly connected to the reciprocating slider 12 through a connecting frame 13.

[0045] Specifically, when the tensile strength of the power cord meets the requirements, the slide 3 stops moving upward and the motor 11 is started, the motor 11 will drive the reciprocating screw 10 to rotate, the reciprocating screw 10 will drive the reciprocating slider 12 to slide back and forth, the reciprocating slider 12 will drive the support 8 to slide back and forth through the connecting frame 13, the support 8 will drive the top block 9 to indirectly press the power cord in the straightened state to simulate the power cord being pressed by trees or other objects in actual use. When the power cord is quickly damaged and broken, it is judged to be unqualified, otherwise it is qualified, thereby improving the detection accuracy of the power cord.

[0046] Embodiment three:

[0047] Reference Figure 1-Figure 3 as well as Figure 5-Figure 7 , which is basically the same as the second embodiment, and further, a specific implementation scheme of automatically replacing the top block 9 is specifically added.

[0048] The support column 8 is fixedly connected to a C-shaped frame 14, the bottom of the C-shaped frame 14 is rotatably connected to a rotating shaft 16, the top of the C-shaped frame 14 is longitudinally slidably mounted with a cylindrical lifting shaft 18, and the lifting shaft 18 can also rotate on the C-shaped frame 14, and a sliding hole 25 is provided at the bottom of the lifting shaft 18, and a sliding column 17 fixedly connected to the rotating shaft 16 is longitudinally slidably mounted in the sliding hole 25, and the axial end surface shape of the sliding column 17 is hexagonal, and the C-shaped frame 14 is provided with an adjustment part for driving the rotating shaft 16 to rotate, and the adjustment part includes a rotating rod 19 rotatably connected to the lower end of the C-shaped frame 14, and the rotating rod 19 is connected to the rotating shaft 16 through a worm gear assembly 20, and the worm gear assembly 20 is mainly composed of a worm and a worm wheel that cooperate with each other, and the worm and the worm wheel are respectively installed on the rotating rod 19 and the rotating shaft 16. A driven gear 21 is installed at one end of the rotating rod 19 through a one-way bearing. A first rack 22 that is meshed with the driven gear 21 is fixedly connected to the electric slide rail 2. There are multiple top blocks 9 with different shapes and roughness, such as triangles, cylinders, etc., to simulate different objects to press and scratch the power cord. The number of top blocks 9 is 3-12, and the preferred number in this application is 6. A disc 15 is fixedly installed on the outer wall of the lifting shaft 18, and multiple top blocks 9 are fixedly connected to the outer wall of the disc 15 at equal intervals.

[0049] Specifically, when the support 8 slides back and forth, the support 8 will drive the rotating rod 19 to move back and forth through the C-shaped frame 14, and the rotating rod 19 will drive the driven gear 21 to roll back and forth on the first rack 22, and the driven gear 21 will rotate back and forth. Since the driven gear 21 is installed on the rotating rod 19 through a one-way bearing, the driven gear 21 will drive the rotating rod 19 to rotate only when it rotates forward. The rotating rod 19 will drive the rotating shaft 16 to rotate through the worm gear assembly 20, and the rotating shaft 16 will drive the lifting shaft 18 and the disc 15 to rotate through the sliding column 17. The disc 15 will drive multiple top blocks 9 to revolve around its axis, so that the positions of multiple top blocks 9 will be automatically changed, so that the top blocks 9 of different shapes and materials are facing the power cord, so that the power cord is pressed by objects of different materials and shapes, so that the power cord can be more in line with the actual usage and the detection accuracy of the power cord can be improved.

[0050] A trapezoidal block 26 is fixedly connected to the electric slide rail 2, the top of the lifting shaft 18 is attached to the inclined surface of the trapezoidal block 26, a ring 23 is rotatably installed on the inner bottom of the C-shaped frame 14, and a return spring 24 is installed between the disc 15 and the ring 23.

[0051] Specifically, when the C-shaped frame 14 drives the top block 9 to move toward the power cord, the C-shaped frame 14 will also drive the top of the lifting shaft 18 to slide along the inclined surface of the trapezoidal block 26. The lifting shaft 18 will slide downward under the action of the inclined surface of the trapezoidal block 26, thereby driving the disc 15 and the top block 9 to slide downward. Therefore, when the top block 9 presses the power cord, it will also slide along the surface of the power cord to simulate the power cord being scratched by a moving object, thereby further improving the accuracy of power supply detection. When the disc 15 slides downward, it will also compress the reset spring 24. When the C-shaped frame 14 drives the power cord and the lifting shaft 18 to move in the opposite direction to reset, the reset spring 24 will drive the disc 15 and the top block 9 to slide downward to reset.

[0052] Embodiment 4:

[0053] Reference Figure 3-Figure 5 , which is basically the same as the third embodiment, and further, a specific implementation scheme for causing one end of the power cord to twist is specifically added.

[0054] The lower cylinder 5 is rotatably connected to the input end of the tension detector 4 , and a passive gear 27 is fixedly mounted on the outer wall of the lower cylinder 5 , and a second rack 28 meshingly connected with the passive gear 27 is fixedly mounted on the support column 8 .

[0055] Specifically, when the support 8 slides back and forth, the support 8 will also drive the second rack 28 to slide back and forth, the second rack 28 will drive the passive gear 27 to rotate back and forth, the passive gear 27 will drive the lower cylinder 5 to rotate back and forth, and the lower cylinder 5 will drive one end of the power cord to rotate back and forth, so that the power cord will be subjected to torsion during the detection process, further improving the detection accuracy of the power cord.

[0056] Embodiment five:

[0057] Reference Figure 8 , which is basically the same as the fourth embodiment, and further, a specific implementation plan for protecting the power line is specifically added.

[0058] A slide groove 29 is provided at the bottom of the slide table 3 , a slide plate 30 is longitudinally slidably installed in the slide groove 29 , a buffer spring 31 is installed between the slide plate 30 and the inner top of the slide groove 29 , and the upper cylinder 6 is fixedly connected to the lower end of the slide plate 30 .

[0059] Specifically, when the power cord is subjected to a pulling force greater than 1.2 times the preset value, the buffer spring 31 will be stretched and the slide plate 30 will slide downward in the slide groove 29, thereby achieving the purpose of buffering and preventing the power cord from being damaged by excessive force.

[0060] The side wall of the above-mentioned slide groove 29 is provided with a transverse groove 32, and a damping plate 33 is installed in the transverse groove 32 for transverse sliding. The outer wall of the damping plate 33 is provided with anti-slip grooves for increasing friction. One side of the slide plate 30 is attached to the outer wall of the damping plate 33, and the slide 3 is provided with a tightening part for pushing the damping plate 33 to move transversely; the tightening part includes a screw rod 34 rotatably connected to the outer wall of the damping plate 33, and one end of the screw rod 34 extends to the outer wall of the slide 3 and is fixedly installed with a turning handle 35.

[0061] Specifically, when the skateboard 30 slides longitudinally, the damping plate 33 will give resistance to the skateboard 30. When the tensile strength of the power cord is strong, the screw 34 is tightened, and the damping plate 33 will be closer to the side wall of the skateboard 30, thereby increasing the friction resistance of the skateboard 30, thereby enabling tensile testing of power cords of different strengths, which is more flexible to use.

[0062] A power line detection method, the operation steps are as follows:

[0063] Step 1: Fix the two ends of the power cord to the lower cylinder 5 and the upper cylinder 6 respectively;

[0064] Step 2: The slide 3 drives the upper cylinder 6 to straighten the power cord, and the power cord is subjected to a preset tension value;

[0065] Step 3: Make the top block 9 indirectly press the straightened power line;

[0066] Step 4: When the top block 9 is pressing the power line, the top block 9 is made to slide along the outer wall of the power line;

[0067] Step 5: Twist one end of the pressed power cord;

[0068] Step 6: If the power cord is worn or broken, the power supply is considered unqualified, otherwise it is qualified.

[0069] The power cord detection device, when it is necessary to detect the power cord, fixes the two ends of the power cord on the lower cylinder 5 and the upper cylinder 6 respectively through the clamp 7, and then drives the slide 3 to move upward through the electric slide rail 2, and the slide 3 will gradually tighten the power cord through the upper cylinder 6. At this time, the tension detector 4 will detect the tension on the power cord. When the tension value reaches the preset value and the power cord is not broken or damaged, it is determined that the strength of the power cord is qualified. On the contrary, when the power cord is broken, it is determined that the power cord is unqualified.

[0070] When the tensile strength of the power cord meets the requirements, the slide 3 stops moving upward and the motor 11 is started. The motor 11 will drive the reciprocating screw 10 to rotate, and the reciprocating screw 10 will drive the reciprocating slider 12 to slide back and forth. The reciprocating slider 12 will drive the support 8 to slide back and forth through the connecting frame 13, and the support 8 will drive the top block 9 to indirectly press the power cord in the straightened state to simulate the power cord being pressed by trees or other objects in actual use. When the power cord is quickly damaged and broken, it is judged to be unqualified, otherwise it is qualified, thereby improving the detection accuracy of the power cord.

[0071] When the support 8 slides back and forth, the support 8 will drive the rotating rod 19 to move back and forth through the C-shaped frame 14, and the rotating rod 19 will drive the driven gear 21 to roll back and forth on the first rack 22, and the driven gear 21 will rotate back and forth. Since the driven gear 21 is installed on the rotating rod 19 through a one-way bearing, the driven gear 21 will drive the rotating rod 19 to rotate only when it rotates forward. The rotating rod 19 will drive the rotating shaft 16 to rotate through the worm gear assembly 20, and the rotating shaft 16 will drive the lifting shaft 18 and the disc 15 to rotate through the sliding column 17. The disc 15 will drive multiple top blocks 9 to revolve around its axis, so that the positions of multiple top blocks 9 will be automatically changed, so that the top blocks 9 of different shapes and materials are facing the power cord, so that the power cord is pressed by objects of different materials and shapes, so that the power cord can be more in line with the actual usage and the detection accuracy of the power cord can be improved.

[0072] When the C-shaped frame 14 drives the top block 9 to move toward the power line, the C-shaped frame 14 will also drive the top of the lifting shaft 18 to slide along the inclined surface of the trapezoidal block 26. The lifting shaft 18 will slide downward under the action of the inclined surface of the trapezoidal block 26, thereby driving the disc 15 and the top block 9 to slide downward. Therefore, when the top block 9 presses the power line, it will also slide along the surface of the power line to simulate the power line being scratched by a moving object, thereby further improving the accuracy of power supply detection. When the disc 15 slides downward, it will also compress the reset spring 24. When the C-shaped frame 14 drives the power line and the lifting shaft 18 to move in the opposite direction to reset, the reset spring 24 will drive the disc 15 and the top block 9 to slide downward to reset.

[0073] When the support 8 slides back and forth, the support 8 will also drive the second rack 28 to slide back and forth, the second rack 28 will drive the passive gear 27 to rotate back and forth, the passive gear 27 will drive the lower cylinder 5 to rotate back and forth, and the lower cylinder 5 will drive one end of the power cord to rotate back and forth, so that the power cord will be subjected to torsion during the detection process, further improving the detection accuracy of the power cord.

[0074] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power line detection device, comprising a base (1), on which a tension detector (4) is fixedly mounted, characterized in that: Also includes: The electric slide rail (2) is vertically fixedly mounted on the base (1). A slide table (3) is longitudinally slidably mounted on the electric slide rail (2); an upper cylinder (6) and a lower cylinder (5) are respectively mounted on the lower end of the slide table (3) and the input end of the tension detector (4); and a clamp (7) is fixedly mounted on both the upper cylinder (6) and the lower cylinder (5); A support (8) is laterally slidably mounted on the base (1), The support column (8) is provided with a top block (9) facing between the upper cylinder (6) and the lower cylinder (5), and the base (1) is provided with a reciprocating part for driving the support column (8) to slide back and forth.

2. A power line detection device according to claim 1, characterized in that: The reciprocating portion comprises a strip groove (36) arranged on the base (1), and a reciprocating screw (10) is rotatably mounted in the strip groove (36). The outer wall of the reciprocating screw (10) is provided with a reciprocating slider (12) slidably connected to the strip groove (36), a motor (11) for driving the reciprocating screw (10) to rotate is fixedly installed in the strip groove (36), and the support (8) is fixedly connected to the reciprocating slider (12) via a connecting frame (13).

3. A power line detection device according to claim 1, characterized in that: A C-shaped frame (14) is fixedly connected to the pillar (8), a rotating shaft (16) is rotatably connected to the bottom of the C-shaped frame (14), a lifting shaft (18) is longitudinally slidably installed on the top of the C-shaped frame (14), a sliding hole (25) is provided at the bottom of the lifting shaft (18), a sliding column (17) fixedly connected to the rotating shaft (16) is longitudinally slidably installed in the sliding hole (25), an adjusting portion for driving the rotating shaft (16) to rotate is provided on the C-shaped frame (14), a plurality of the top blocks (9) are provided, a disc (15) is fixedly installed on the outer wall of the lifting shaft (18), and a plurality of the top blocks (9) are fixedly connected to the outer wall of the disc (15) at equal intervals.

4. A power line detection device according to claim 3, characterized in that: The adjusting part comprises a rotating rod (19) rotatably connected to the lower end of the C-shaped frame (14); the rotating rod (19) is connected to the rotating shaft (16) via a worm gear assembly (20); a driven gear (21) is mounted on one end of the rotating rod (19) via a one-way bearing; and a first rack (22) meshingly connected to the driven gear (21) is fixedly connected to the electric slide rail (2).

5. A power line detection device according to claim 3, characterized in that: A trapezoidal block (26) is fixedly connected to the electric slide rail (2), the top of the lifting shaft (18) is attached to the inclined surface of the trapezoidal block (26), a circular ring (23) is rotatably mounted on the inner bottom of the C-shaped frame (14), and a return spring (24) is installed between the circular disc (15) and the circular ring (23).

6. A power line detection device according to claim 1, characterized in that: The lower cylinder (5) is rotatably connected to the input end of the tension detector (4), and a passive gear (27) is fixedly mounted on the outer wall of the lower cylinder (5), and a second rack (28) meshingly connected with the passive gear (27) is fixedly mounted on the support (8).

7. A power line detection device according to claim 1, characterized in that: A slide groove (29) is provided at the bottom of the slide table (3), a slide plate (30) is longitudinally slidably installed in the slide groove (29), a buffer spring (31) is installed between the slide plate (30) and the inner top of the slide groove (29), and the upper cylinder (6) is fixedly connected to the lower end of the slide plate (30).

8. A power line detection device according to claim 7, characterized in that: The side wall of the slide groove (29) is provided with a transverse groove (32), a damping plate (33) is installed in the transverse groove (32) for transverse sliding, one side of the slide plate (30) is attached to the outer wall of the damping plate (33), and the slide table (3) is provided with a pressing part for pushing the damping plate (33) to move transversely.

9. A power line detection device according to claim 8, characterized in that: The abutting portion comprises a screw rod (34) rotatably connected to the outer wall of the damping plate (33); one end of the screw rod (34) extends to the outer wall of the slide table (3) and is fixedly mounted with a turning handle (35).

10. A power line detection method, comprising a power line detection device according to any one of claims 1 to 9, characterized in that: The steps are as follows: Step 1: Fix the two ends of the power cord to the lower cylinder (5) and the upper cylinder (6) respectively; Step 2: The slide table (3) drives the upper cylinder (6) to straighten the power cord, and the power cord is subjected to a preset tension value; Step 3: Using the top block (9) to indirectly press the straightened power line; Step 4: When the top block (9) is pressing the power line, the top block (9) is slid along the outer wall of the power line; Step 5: Twist one end of the pressed power cord; Step 6: If the power cord is worn or broken, the power supply is considered unqualified, otherwise it is qualified.

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